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ollegr [7]
3 years ago
5

Jimmy can walk 2/9 of a mile in 2/9 of an hour. How fast does he walk in miles/hour

Mathematics
1 answer:
kobusy [5.1K]3 years ago
7 0

Answer:

The speed of jimmy = 1 mile /hour .

Step-by-step explanation:

Distance traveled by jimmy = 2/9 miles

Time taken = 2/9

Speed = distance / time = 1 mile/ hour

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What’s is the area of shape B?
Phantasy [73]

Answer:

28.5 cm²

Step-by-step explanation:

There are 7 whole diamonds and 5 half-diamonds.  Each diamond is worth three.

7x3=21

5/2x3=7.5

21+7.5=28.5

6 0
2 years ago
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The pressure and volume of an expanding gas are related by the formula PV^b=C, where b and C are constants (this holds in adiaba
bazaltina [42]

The dP/dt of the adiabatic expansion is -42/11 kPa/min

<h3>How to calculate dP/dt in an adiabatic expansion?</h3>

An adiabatic process is a process in which there is no exchange of heat from the system to its surrounding neither during expansion nor during compression

Given b=1.5, P=7 kPa, V=110 cm³, and dV/dt=40 cm³/min

PVᵇ = C

Taking logs of both sides gives:

ln P + b ln V = ln C

Taking partial derivatives gives:

\frac{1}{P}\frac{∂P}{∂t}  + \frac{b}{V}\frac{∂V}{∂t} = 0

Substitutituting the values b, P, V and dV/dt into the derivative above:

1/7 x dP/dt +  1.5/110 x 40 = 0

1/7 x dP/dt +  6/11 = 0

1/7 x dP/dt = - 6/11

dP/dt = - 6/11 x 7

dP/dt = -42/11 kPa/min

Therefore, the value of  dP/dt is -42/11 kPa/min

Learn more about adiabatic expansion on:

brainly.com/question/6966596

#SPJ1

4 0
1 year ago
Algebra help - please be so kind - god bless. 2&amp;3 please
azamat
2. -11 sq rt of 112
Sq rt of 16 times sq rt of 7
Becomes 4 sq rt of 7
Multiply -11 times 4 sq rt of 7
-44 sq rt of 7
Answer A


3. Subtract 17-9 since they are hitch the same sq rt

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4 0
3 years ago
Tripp decided to go on vacation to the beach. After driving 60% of the way, he decided to stop for lunch. If he stopped for lunc
umka21 [38]

Answer:

40=10% im rightthe total is 400

Step-by-step explanation:

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Meghan's favorite music group has 80 songs. Meghan has 75% of the
kherson [118]

Answer:

60 songs

Step-by-step explanation:

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